<template>
  <div id="myKline2" :style="{width: '1200px', height: '1000px',margin:'50px',padding:'50px'}"></div>

</template>

<script>

let echarts = require('echarts/lib/echarts');
require('echarts/lib/chart/bar');
require('echarts/lib/chart/candlestick');
require('echarts/lib/chart/line');
require('echarts/lib/component/dataZoom');
require('echarts/lib/component/tooltip');
require('echarts/lib/component/toolbox');
require('echarts/lib/component/legend');
require('echarts/lib/component/markLine');

// 数据意义：开盘(open)，收盘(close)，最低(lowest)，最高(highest)
var data0 = splitData([
  ['2013/1/24', 2320.26,2320.26,2287.3,2362.94],
  ['2013/1/25', 2300,2291.3,2288.26,2308.38],
  ['2013/1/28', 2295.35,2346.5,2295.35,2346.92],
  ['2013/1/29', 2347.22,2358.98,2337.35,2363.8],
  ['2013/1/30', 2360.75,2382.48,2347.89,2383.76],
  ['2013/1/31', 2383.43,2385.42,2371.23,2391.82],
  ['2013/2/1', 2377.41,2419.02,2369.57,2421.15],
  ['2013/2/4', 2425.92,2428.15,2417.58,2440.38],
  ['2013/2/5', 2411,2433.13,2403.3,2437.42],
  ['2013/2/6', 2432.68,2434.48,2427.7,2441.73],
  ['2013/2/7', 2430.69,2418.53,2394.22,2433.89],
  ['2013/2/8', 2416.62,2432.4,2414.4,2443.03],
  ['2013/2/18', 2441.91,2421.56,2415.43,2444.8],
  ['2013/2/19', 2420.26,2382.91,2373.53,2427.07],
  ['2013/2/20', 2383.49,2397.18,2370.61,2397.94],
  ['2013/2/21', 2378.82,2325.95,2309.17,2378.82],
  ['2013/2/22', 2322.94,2314.16,2308.76,2330.88],
  ['2013/2/25', 2320.62,2325.82,2315.01,2338.78],
  ['2013/2/26', 2313.74,2293.34,2289.89,2340.71],
  ['2013/2/27', 2297.77,2313.22,2292.03,2324.63],
  ['2013/2/28', 2322.32,2365.59,2308.92,2366.16],
  ['2013/3/1', 2364.54,2359.51,2330.86,2369.65],
  ['2013/3/4', 2332.08,2273.4,2259.25,2333.54],
  ['2013/3/5', 2274.81,2326.31,2270.1,2328.14],
  ['2013/3/6', 2333.61,2347.18,2321.6,2351.44],
  ['2013/3/7', 2340.44,2324.29,2304.27,2352.02],
  ['2013/3/8', 2326.42,2318.61,2314.59,2333.67],
  ['2013/3/11', 2314.68,2310.59,2296.58,2320.96],
  ['2013/3/12', 2309.16,2286.6,2264.83,2333.29],
  ['2013/3/13', 2282.17,2263.97,2253.25,2286.33],
  ['2013/3/14', 2255.77,2270.28,2253.31,2276.22],
  ['2013/3/15', 2269.31,2278.4,2250,2312.08],
  ['2013/3/18', 2267.29,2240.02,2239.21,2276.05],
  ['2013/3/19', 2244.26,2257.43,2232.02,2261.31],
  ['2013/3/20', 2257.74,2317.37,2257.42,2317.86],
  ['2013/3/21', 2318.21,2324.24,2311.6,2330.81],
  ['2013/3/22', 2321.4,2328.28,2314.97,2332],
  ['2013/3/25', 2334.74,2326.72,2319.91,2344.89],
  ['2013/3/26', 2318.58,2297.67,2281.12,2319.99],
  ['2013/3/27', 2299.38,2301.26,2289,2323.48],
  ['2013/3/28', 2273.55,2236.3,2232.91,2273.55],
  ['2013/3/29', 2238.49,2236.62,2228.81,2246.87],
  ['2013/4/1', 2229.46,2234.4,2227.31,2243.95],
  ['2013/4/2', 2234.9,2227.74,2220.44,2253.42],
  ['2013/4/3', 2232.69,2225.29,2217.25,2241.34],
  ['2013/4/8', 2196.24,2211.59,2180.67,2212.59],
  ['2013/4/9', 2215.47,2225.77,2215.47,2234.73],
  ['2013/4/10', 2224.93,2226.13,2212.56,2233.04],
  ['2013/4/11', 2236.98,2219.55,2217.26,2242.48],
  ['2013/4/12', 2218.09,2206.78,2204.44,2226.26],
  ['2013/4/15', 2199.91,2181.94,2177.39,2204.99],
  ['2013/4/16', 2169.63,2194.85,2165.78,2196.43],
  ['2013/4/17', 2195.03,2193.8,2178.47,2197.51],
  ['2013/4/18', 2181.82,2197.6,2175.44,2206.03],
  ['2013/4/19', 2201.12,2244.64,2200.58,2250.11],
  ['2013/4/22', 2236.4,2242.17,2232.26,2245.12],
  ['2013/4/23', 2242.62,2184.54,2182.81,2242.62],
  ['2013/4/24', 2187.35,2218.32,2184.11,2226.12],
  ['2013/4/25', 2213.19,2199.31,2191.85,2224.63],
  ['2013/4/26', 2203.89,2177.91,2173.86,2210.58],
  ['2013/5/2', 2170.78,2174.12,2161.14,2179.65],
  ['2013/5/3', 2179.05,2205.5,2179.05,2222.81],
  ['2013/5/6', 2212.5,2231.17,2212.5,2236.07],
  ['2013/5/7', 2227.86,2235.57,2219.44,2240.26],
  ['2013/5/8', 2242.39,2246.3,2235.42,2255.21],
  ['2013/5/9', 2246.96,2232.97,2221.38,2247.86],
  ['2013/5/10', 2228.82,2246.83,2225.81,2247.67],
  ['2013/5/13', 2247.68,2241.92,2231.36,2250.85],
  ['2013/5/14', 2238.9,2217.01,2205.87,2239.93],
  ['2013/5/15', 2217.09,2224.8,2213.58,2225.19],
  ['2013/5/16', 2221.34,2251.81,2210.77,2252.87],
  ['2013/5/17', 2249.81,2282.87,2248.41,2288.09],
  ['2013/5/20', 2286.33,2299.99,2281.9,2309.39],
  ['2013/5/21', 2297.11,2305.11,2290.12,2305.3],
  ['2013/5/22', 2303.75,2302.4,2292.43,2314.18],
  ['2013/5/23', 2293.81,2275.67,2274.1,2304.95],
  ['2013/5/24', 2281.45,2288.53,2270.25,2292.59],
  ['2013/5/27', 2286.66,2293.08,2283.94,2301.7],
  ['2013/5/28', 2293.4,2321.32,2281.47,2322.1],
  ['2013/5/29', 2323.54,2324.02,2321.17,2334.33],
  ['2013/5/30', 2316.25,2317.75,2310.49,2325.72],
  ['2013/5/31', 2320.74,2300.59,2299.37,2325.53],
  ['2013/6/3', 2300.21,2299.25,2294.11,2313.43],
  ['2013/6/4', 2297.1,2272.42,2264.76,2297.1],
  ['2013/6/5', 2270.71,2270.93,2260.87,2276.86],
  ['2013/6/6', 2264.43,2242.11,2240.07,2266.69],
  ['2013/6/7', 2242.26,2210.9,2205.07,2250.63],
  ['2013/6/13', 2190.1,2148.35,2126.22,2190.1]
]);

//切割数组，把数组中的日期和数据分离，返回数组中的日期和数据
function splitData(rawData) {
  var categoryData = [];
  var values = [];

  for (var i = 0; i < rawData.length; i++) {
    //splice 返回每组数组中被删除的第一项，即返回数组中被删除的日期
    //alert(rawData[i].splice(0, 1)[0]);
    //categoryData  日期  把返回的日期放到categoryData[]数组中
    categoryData.push(rawData[i].splice(0, 1)[0]);
    //alert(categoryData);

    //数据数组，即数组中除日期外的数据
    // alert(rawData[i]);
    values.push(rawData[i])
  }
  return {
    categoryData: categoryData, //数组中的日期 x轴对应的日期
    values: values              //数组中的数据 y轴对应的数据
  };
}

//计算MA平均线，N日移动平均线=N日收盘价之和/N  dayCount要计算的天数(5,10,20,30)
function calculateMA(dayCount) {
  var result = [];
  for (var i = 0, len = data0.values.length; i < len; i++) {
    if (i < dayCount) {
      result.push('-');
      //alert(result);
      continue;   //结束单次循环，即不输出本次结果
    }
    var sum = 0;
    for (var j = 0; j < dayCount; j++) {
      //收盘价总和
      sum += data0.values[i - j][1];
      //alert(sum);
    }
    result.push(sum / dayCount);
    // alert(result);
  }
  return result;
}

export default {
  data(){
    return{
      text: 'ab',
    }
  },
  mounted() {
    this.drawLine();
  },
  methods: {
    drawLine() {
      // 基于准备好的dom，初始化echarts实例
      let myChart = echarts.init(document.getElementById('myKline2'))
      // 绘制图表
      myChart.setOption({

        title: {    //标题
          text: '上证指数',
          left: 0
        },
        tooltip: {  //提示框
          trigger: 'axis',    //触发类型：坐标轴触发
          axisPointer: {  //坐标轴指示器配置项
            type: 'cross'   //指示器类型，十字准星
          }
        },
        legend: {   //图例控件，点击图例控制哪些系列不现实
          data: ['日K', 'MA5', 'MA10', 'MA20', 'MA30']
        },
        grid: {     //直角坐标系
          show:true,
          left: '10%',    //grid组件离容器左侧的距离
          right: '10%',
          bottom: '15%',
          //backgroundColor:'#ccc'
        },
        xAxis: {
          type: 'category',   //坐标轴类型，类目轴
          data: data0.categoryData,
          //scale: true,  //只在数字轴中有效
          boundaryGap : false,    //刻度作为分割线，标签和数据点会在两个刻度上
          axisLine: {onZero: false},
          splitLine: {show: false},   //是否显示坐标轴轴线
          //splitNumber: 20,    //坐标轴的分割段数，预估值，在类目轴中无效
          min: 'dataMin', //特殊值，数轴上的最小值作为最小刻度
          max: 'dataMax'  //特殊值，数轴上的最大值作为最大刻度
        },
        yAxis: {
          scale: true,    //坐标刻度不强制包含零刻度
          splitArea: {
            show: true  //显示分割区域
          }
        },
        dataZoom: [     //用于区域缩放
          {
            filterMode:'filter',    //当前数据窗口外的数据被过滤掉来达到数据窗口缩放的效果  默认值filter
            type: 'inside', //内置型数据区域缩放组件
            start: 50,      //数据窗口范围的起始百分比
            end: 100        //数据窗口范围的结束百分比
          },
          {
            show: true,
            type: 'slider', //滑动条型数据区域缩放组件
            y: '90%',
            start: 50,
            end: 100
          }
        ],
        series: [   //图表类型
          {
            name: '日K',
            type: 'candlestick',    //K线图
            data: data0.values,     //y轴对应的数据

            ////////////////////////图标标注/////////////////////////////

            markPoint: {    //图表标注
              label: {    //标注的文本
                normal: {   //默认不显示标注
                  show:true,
                  //position:['20%','30%'],
                  formatter: function (param) {   //标签内容控制器
                    return param != null ? Math.round(param.value) : '';
                  }
                }
              },
              data: [     //标注的数据数组
                {
                  name: 'XX标点',
                  coord: ['2013/5/31', 2300], //指定数据的坐标位置
                  value: 2300,
                  itemStyle: {    //图形样式
                    normal: {color: 'rgb(41,60,85)'}
                  }
                },
                {
                  name: 'highest value',
                  type: 'max',    //最大值
                  valueDim: 'highest'     //在highest维度上的最大值 最高价
                },
                {
                  name: 'lowest value',
                  type: 'min',
                  valueDim: 'lowest'  //最低价
                },
                {
                  name: 'average value on close',
                  type: 'average',
                  valueDim: 'close'   //收盘价
                }
              ],
              tooltip: {      //提示框
                formatter: function (param) {
                  return param.name + '<br>' + (param.data.coord || '');
                }
              }
            },

/////////////////////////////////图标标线///////////////////////////

            markLine: {
              symbol: ['none', 'none'],   //标线两端的标记类型
              data: [
                [
                  {
                    name: 'from lowest to highest',
                    type: 'min',    //设置该标线为最小值的线
                    valueDim: 'lowest', //指定在哪个维度上的最小值
                    symbol: 'circle',
                    symbolSize: 10, //起点标记的大小
                    label: {    //normal默认，emphasis高亮
                      normal: {show: false},  //不显示标签
                      emphasis: {show: false} //不显示标签
                    }
                  },
                  {
                    type: 'max',
                    valueDim: 'highest',
                    symbol: 'circle',
                    symbolSize: 10,
                    label: {
                      normal: {show: false},
                      emphasis: {show: false}
                    }
                  }
                ],

                {
                  name: 'min line on close',
                  type: 'min',
                  valueDim: 'close'
                },
                {
                  name: 'max line on close',
                  type: 'max',
                  valueDim: 'close'
                }
              ]

            }

          },

          {   //MA5 5天内的收盘价之和/5
            name: 'MA5',
            type: 'line',
            data: calculateMA(5),
            smooth: true,
            lineStyle: {
              normal: {opacity: 0.5}
            }
          },
          {
            name: 'MA10',
            type: 'line',
            data: calculateMA(10),
            smooth: true,
            lineStyle: {    //标线的样式
              normal: {opacity: 0.5}
            }
          },
          {
            name: 'MA20',
            type: 'line',
            data: calculateMA(20),
            smooth: true,
            lineStyle: {
              normal: {opacity: 0.5}
            }
          },
          {
            name: 'MA30',
            type: 'line',
            data: calculateMA(30),
            smooth: true,
            lineStyle: {
              normal: {opacity: 0.5}
            }
          },

        ]


      })
    }
  }
}

</script>
<style>
#myChart{
  color:red;
}

</style>
